MNT-14.1: Maintenance Personnel Without Appropriate Access
Mechanisms exist to ensure the risks associated with maintenance personnel who do not have appropriate access authorizations, clearances or formal access approvals are appropriately mitigated.
Renumbered: Formerly MNT-06.1 in SCF 2025.4.
Control Question: Does the organization ensure the risks associated with maintenance personnel who do not have appropriate access authorizations, clearances or formal access approvals are appropriately mitigated?
General (15)
| Framework | Mapping Values |
|---|---|
| GovRAMP | MA-05(01) |
| GovRAMP Moderate | MA-05(01) |
| GovRAMP High | MA-05(01) |
| NIST 800-53 R4 | MA-5(1) MA-5(2) MA-5(3) MA-5(4) |
| NIST 800-53 R5.2 | MA-05(01) MA-05(02) MA-05(03) MA-05(04) |
| NIST 800-53B R5 (high) (source) | MA-05(01) |
| NIST 800-82 R3 | MA-05(01) MA-05(02) MA-05(03) MA-05(04) |
| NIST 800-82 R3 HIGH OT Overlay | MA-05(01) |
| NIST 800-161 R1 | MA-5(4) |
| NIST 800-161 R1 Flow Down | MA-5(4) |
| NIST 800-161 R1 Level 2 | MA-5(4) |
| NIST 800-161 R1 Level 3 | MA-5(4) |
| NIST 800-171 R2 (source) | 3.7.6 |
| NIST 800-171 R3 (source) | 03.07.06.c 03.07.06.d |
| NIST 800-171A R3 (source) | A.03.07.06.c A.03.07.06.d[01] A.03.07.06.d[02] |
US (4)
| Framework | Mapping Values |
|---|---|
| USA Federal CMMC 2.0 Level 2 | MAL2.-3.7.6 |
| USA Federal FedRAMP R5 (moderate) | MA-05(01) |
| USA Federal FedRAMP R5 (high) | MA-05(01) |
| USA Federal 33 CFR Part 101 Subpart F | 101.650(d)(3) |
EMEA (4)
| Framework | Mapping Values |
|---|---|
| EMEA UK DEFSTAN 05-138 2024 | 2513 |
| EMEA UK DEFSTAN 05-138 - L1 2024 | 2513 |
| EMEA UK DEFSTAN 05-138 - L2 2024 | 2513 |
| EMEA UK DEFSTAN 05-138 - L3 2024 | 2513 |
APAC (2)
| Framework | Mapping Values |
|---|---|
| APAC Australia ISM June 2026 | ISM-0306 |
| APAC New Zealand NZISM 3.9 | 12.5.4.C.01 12.5.4.C.02 12.5.4.C.03 12.5.4.C.04 |
Americas (1)
| Framework | Mapping Values |
|---|---|
| Americas Canada ITSP-10-171 2025 | 03.07.06.C 03.07.06.D |
Capability Maturity Model
Level 0 — Not Performed
Practices are non-existent, based on the inability to demonstrate an implemented and operational capability. A reasonable person would conclude the control is not being performed.
Level 1 — Performed Informally
Maintenance (MNT) domain capabilities are ad hoc and inconsistent. Capability criteria associated with this control may include: ▪ Policies, standards & procedures associated with MNT domain capabilities provide limited coverage due to the depth and breadth of the existing documentation. ▪ Maintenance-related activities are decentralized (e.g., a localized/regionalized function) and uses non-standardized methods to implement secure, resilient and compliant practices. ▪ Maintenance controls are primarily administrative in nature (e.g., policies & standards) to manage change control processes associated with maintenance operations.
Level 2 — Planned & Tracked
Maintenance (MNT) capabilities are requirements-driven, but are not standardized across the entity (e.g., local/regional level consistency). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with MNT domain capabilities are formally documented and centrally-managed by the entity. ▪ Standardized Operating Procedures (SOP) associated with MNT domain capabilities are documented and maintained by process owners. ▪ IT and/or cybersecurity personnel work with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with MNT domain capabilities to address applicable statutory, regulatory and/or contractual requirements for Technology Assets, Applications, Services and/or Data (TAASD). ▪ Maintenance-related controls are primarily administrative and preventative in nature (e.g., policies, standards and procedures & guidelines). ▪ Asset management may be a defined function (e.g., team or department) or assigned as an additional duty to existing IT and/or cybersecurity personnel. ▪ IT personnel, in conjunction with asset custodians, develop and maintain facilitate localized/regionalized procedures to conduct controlled and timely maintenance activities throughout the lifecycle of the Technology Asset, Application and/or Service (TAAS). ▪ Maintenance operations may be centralized for certain locations (e.g., datacenters) and decentralized for other locations, both in terms of change management and execution. ▪ Asset / process owners require maintenance personnel to obtain pre-approval and scheduling for non-local maintenance sessions. ▪ IT personnel, in conjunction with asset custodians, mitigate the risks associated with maintenance personnel who do not have appropriate access authorizations, clearances or formal access approvals are appropriately mitigated.
Level 3 — Well Defined
Maintenance (MNT) capabilities are standardized across the entity for applicability to People, Processes, Technologies, Data and/or Facilities (PPTDF) to ensure consistency for Technology Assets, Applications, Services and/or Data (TAASD). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with MNT domain capabilities are formally documented and centrally-managed by the entity's Governance, Risk & Compliance (GRC) team, or similar function. ▪ Standardized Operating Procedures (SOP) associated with MNT domain capabilities (e.g., maintenance pans) are documented and maintained by process owners. ▪ A centralized Change Management Office (CMO), or similar function, is appropriately staffed and supported to implement and maintain MNT domain capabilities. ▪ Technical procedures (e.g., ITIL change enablement) are utilized along with change management governance capabilities to ensure successful, efficient and secure maintenance operations. ▪ The entity's Governance, Risk & Compliance (GRC) team, or similar function, works with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with MNT domain capabilities to address Minimum Compliance Requirements (MCR) (e.g., applicable statutory, regulatory and/or contractual requirements) and Discretionary Security Requirements (DSR) (e.g., entity-required controls). ▪ An implemented and operational capability exists to ensure the risks associated with maintenance personnel who do not have appropriate access authorizations, clearances or formal access approvals are appropriately mitigated.
Level 4 — Quantitatively Controlled
Utilize SCR-CMM Level 3 criteria definitions: ▪ There are no defined Level 4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to operationalize this control. ▪ While it may be possible to develop “metrics-driven” capabilities for this control, the criteria would be organization-specific to define.
Level 5 — Continuously Improving
Utilize SCR-CMM Level 3 or Level 4 (if available) criteria definitions: ▪ There are no defined Level 5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to operationalize this control. ▪ Level 5 capabilities should be considered “world-class” where the control builds on Level 4 capabilities, but are continuously improving through Artificial Intelligence (AI) and/or Machine Learning (ML) technologies. ▪ While it may be possible to develop responsive capabilities for this control through the use of AI and/or ML technologies, the criteria would be organization-specific to define.
Assessment Objectives
- MNT-14.1_A01 maintenance personnel without required access authorization are supervised during maintenance activities.
- MNT-14.1_A02 organizational personnel with required access authorizations are designated to supervise the maintenance activities of personnel who do not possess the required access authorizations.
- MNT-14.1_A03 procedures for the use of maintenance personnel who lack appropriate security clearances or are not U.S. citizens are implemented and include approved organizational personnel who are fully cleared, have appropriate access authorizations and are technically qualified escorting and supervising maintenance personnel without the needed access authorization during the performance of maintenance and diagnostic activities.
- MNT-14.1_A04 procedures for the use of maintenance personnel who lack appropriate security clearances or are not U.S. citizens are implemented and include all volatile information storage components within the system being sanitized and all non-volatile storage media being removed or physically disconnected from the system and secured prior to initiating maintenance or diagnostic activities.
- MNT-14.1_A05 alternate controls are developed and implemented in the event that a system cannot be sanitized, removed or disconnected from the system.
- MNT-14.1_A06 personnel performing maintenance and diagnostic activities on a system processing, storing or transmitting sensitive / regulated data possess security clearances for at least the highest classification level and for compartments of information on the system.
- MNT-14.1_A07 personnel performing maintenance and diagnostic activities on a system processing, storing or transmitting sensitive / regulated data possess formal access approvals for at least the highest classification level and for compartments of information on the system.
- MNT-14.1_A08 personnel performing maintenance and diagnostic activities on a system processing, storing or transmitting sensitive / regulated data are U.S. citizens.
- MNT-14.1_A09 foreign nationals are used to conduct maintenance and diagnostic activities on systems only when approved and authorized.
- MNT-14.1_A10 approvals regarding the use of foreign nationals to conduct maintenance and diagnostic activities on classified systems are fully documented within Memoranda of Agreements.
- MNT-14.1_A11 consents regarding the use of foreign nationals to conduct maintenance and diagnostic activities on classified systems are fully documented within Memoranda of Agreements.
- MNT-14.1_A12 detailed operational conditions regarding the use of foreign nationals to conduct maintenance and diagnostic activities on classified systems are fully documented within Memoranda of Agreements.
- MNT-14.1_A13 non-escorted personnel who perform maintenance on the system possess the required access authorizations.
- MNT-14.1_A14 organizational personnel with required technical competence are designated to supervise the maintenance activities of personnel who do not possess the required access authorizations.
Technology Recommendations
Micro/Small
- Role Based Access Control (RBAC)
Small
- Role Based Access Control (RBAC)
Medium
- Role Based Access Control (RBAC)
Large
- Role Based Access Control (RBAC)
Enterprise
- Role Based Access Control (RBAC)